Sound-reproducing machine.



A. H. RINTELMAN.

SOUND REPRODUClNG MACHINE. v APPUCATHJN mm MAR; 14. i917.

lg fiaw Emma Jan.8,1918.

1 iii f J5 IIIII/II/I/I/Il/II/M.

properly shaped to ill substantially one lit-if of the socket, and which for the trims golsr needle shown is preferably substantially semi-circular in. cross section. The flatsurtoce furnish s bearing for one side of the needle, and preferably employ e set-screw for the auxiliary holder, which is threaded ti'lrough 3. suitable aperture in the side, and the end of which passes through a suitable aperture 26 in the rubher so that the of the'screw can. engage one of the sides of the needle or stylus 15. A function of this rubber top is to make it resilientin case of on scci dropping the tone arm on lllfi c by saving the needle, as Well the record, from injury.

The lower half oi tl'ie :27, which is pref made of row mp or its sun" I with wool. This pod the .oper shape on the side adjacent to rubber block as to :torm a. socl L of the pr pol shape to receive the body of the neo e'without any further compression of the pad. To

- i keep the'apertune or socketiior th'e needle in proper shape to correspond with its cross section Whether the needle is pnshec'l partly in or. all the Way in, 1 line preferably all three sides of the socket with strips 28 of bamboo fiber. These strips ere glued securely to the block 2d and to the pad 22'.

l. have already pointed out the] to ob s.

L the lowlest tone, the needle will directly in the uler soclret'lt but Where softer tones are to be employed, the maxi? iary holderQl is employed, and the needle 15 is thrust into its'socket as as it will go, so that the end which is not in. use will lie bottom of the socket.

engage the metal. The set-screw 25 is then screwed up tightly so that its end engages directly with the fiber strip 28 pressing it against the needle, and this gives the greatest possible vibration of the diaphragm, and consequently the loudest possible tone when the auxiliary socket is used.- If the tone is to be made slightly softer, the set-screw 25 is turned back'so that its end does not engage the fiber 28. If a still softer tone is desired,-the needle 15 is pulled out so that-its end. that is not in use is out of engagement with the bottom of the socket, as shown, in Fig. 3, end the set-screw 25 nsy be tightened. to any desired eXtent,-thus furnishing a further modification of the tone. it Will of course be understood that the farther the needle is drawn out, the'sotter the tone.

The point 16 isused in the manner shown on Victor and Columbia. records, and the points 17 and 17 may be similarly used by reversing the needle and placing the side opposite to the point that is to be used in.

such as the proper angle relative to the groove. Where the needle is to be for an 'lison record, it will of course be used with. sound-box set at the proper angle thereto, and the pointslt? or 17 or may he used. When it is to be used with. o Peth record, the sound box will of course be iEl,lIl'l6 same manner as for an Edison record, but the point or ball 18 will be employed.

While I have herein disclosed my novel stylus, I do not herein claim the is covered by my application No. all, filed January 4, 1915, and While it have shown my novel tone modifying and regulating holder i (5..., is

esemployed with this specific stylus" for which it"was especially devised, I understood that it can be used. in manner and for the same purpose m dilierent styli, such as are common use.

While 1 have shown and described my invention as embodied in the form which l. at present consider best adapted to carry out its purposes, it will be understood that it is capable of modifications, and, that l do not desire to be limited in the interpretation the following claims except as Party be necessitated by the state of the prior art. I run as the structure shown in the patent to 0. 963,546, dated July 5, 191'), and do not claim the same my invention.

What I do claim ne 2', and desire secure by Letters Patent of the United States, is I 1. necdle holder of and unmaterial for tellzing nmchines how in c limlrical pocket in will" a cushioning block of sott h in the upper hali": of the pocket di along its length, and soft fibrous pad in. the lower half, the meeting; faces of the block and. pad being shapedso as to recs e the of the needle without further compressing;

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placed 

